Valve



Jan. 23, 1934. c HUNT 1,944,739

VALVE Original Filed April 25, 1930 I M 29 12L be as f l7 I6 50 2 Z4 Z5 2 5/ 54/ Fly 1 I I l I 1 I I8 INVENTOR Mi /m 81524121 ATTORNEYS Patented Jan, 23, 1934 UNITED STATES PATENT ori-"lca VALVE Nathan 0. Hunt, Salem, Ohio April 16, 1931 4 Claims.

The invention relates to valves for pressure sprinkling system lines and lines used by road"- and building contractors.

1 Numerous valves of the cock type have been fitted together, and which only properly function for a short time, after which leakage occurs in the pressure line at the valve. of cock valves have, however, been provided with means for bleeding the exhausting side of th line in which the valve is connected. It is therefore an object of the present invention to provide a valve for a pressure line which may be readily, quickly, easily and almost instantaneously operated to cut off the flow of fluid under pressure through a pipe line without hav this application is a division of my patent appli-, cation for valve and coupling filed April 25. 1930;

Serial No. 447,309, matured as Patent No. 1.850, 1' 879, dated March 22, 1932.

It is also an object of the present inventionto provide such a valve with means for bleeding the exhausting end of the pressure line when the whichis directly acted upon by the pressure in the llneto increase its sealing capacity. or effec- I tiveness when the pressure in the line is increased. regardless of whether the valve is in on or off position.

Moreover, it. is an object of the presentilnvention to provide a valve wherein the'p'r' sure-in theline in which, the valve is locatedactsytohold made in the past for use in pressure lines, but cool; type valves usually include a tapered valve body, and a valve seat which must be very accurately.

Such prior types operated by the most inexperienced person from I on to off" position substantially instantaneously either by a rotary or a longitudinal movement of the valve sleeve. H Moreover. it is an object of the present'inven tion to provide a valve of the sleeve type in which 00 the valve packing is substantially free from wear or destruction by continued operation of the valve. v

And finally, it is an object" of the present in:v vention to provide a valve construction of the character described in which the constituent parts are of an extremely simple design, are cheap 1 and easy to manufacture, and are very efiicient in use.

These and other objects may be obtained by 7 providing a construction, preferred embodiments of which are hereinafter set forth in detail, which {may be stated in general terms as including abypass valve body. a valve sleeve. packing. means interposed. between the valve body and valve sleeve, and the by-pass portion of the valve body :being preferably arranged so as to bleed'theexhausting side of' the valve when the valve is in 1 off position. v -A preferred form of the improved valve is 3 shown in the accompanying drawing formingpart hereof in which Figure lis an enlarged longitudinalsection through a valve of. the"improvedjtype. the valve. "5' I sleeve being shown in Von"? position; and, Fig. 2 is an enlarged lo'ngitudinalsection simi' lar to Fig. 1 showing the valve in off position. Similar numerals refer to corresponding parts throughout the variousfigures of the drawing; The improv'ed'valve is shown in Fig. 1 in on, position, and includes the valve body 10 provided {with preferably an integral internally threaded pipe connection adapter-member ll. body 10 is preferably .cylindrically tubular in shape, havingpreferably an integral transverse dividing wall or partition disk .12 formed intermediate its ends for interr'uptingthe flow-of an 'flui'd' medium therethrougn;

' The tubularr-walls of "the valve bodyjlll a {provided with' aa' plurality of simiIar f-by -pa openings or port's Band 113: preferably arrang 'each sideface 1 1,4 er, the disk 12. j

. ()rf'end'lfi, of. the valve body l Qis threaded at- 16 :for connection with "the internal 1y ..hreadei;l' "portion l'l of a; hose connection adapte member 1-8. .i 'It 1spointed out that any form of ppejor connection-adapterinember'may be provided order to'meet the particular circumstances of The valve i the pressure line in which the valve is to be located, that is say, the hose connection adapter member 18 and the pipe connection adapter 11 may be transposed so that the member 18 is on the right hand end of the valve body 10 and so that the member 11 is on the left hand end of the valve body 10. Likewise, both members 11 and 18 may be either hose connection adapter members or pipe connection adapter members, or any other form of connection adapter mem bers required for use.

The only restriction upon the selection of and arrangement of connection adapter members resides in the fact that the annular face 19 of, the member 11, and annular face 20 of the member 18 must always be located at a predetermined distance with reference to the disk 12 and bypass ports 13 and 13' for a purpose which will hereinafter be described.

The valve sleeve 21 is preferably slidably and rotatably mounted on the tubular valve body 10 and is provided preferably with two internal circumferential grooves 22 and 23 adjacent its end portions, there being a rounded internal circumferential groove 24 interposed between the grooves 22 and 23.

When the sleeve 21 is mounted on the valve body 10, sufficient clearance is provided at 25 and 26 for forming a communication between the groove 24 and the grooves 22 and 23, respectively, for a purpose which will hereinafter be described' Flexible U-shaped channel packing rings 2'7 and 2'7 preferably formed of leather, are interposed between the valve body 10 and valve sleeve 21 and are located in the circumferential grooves 22 and 23 with the open side of the U-shaped channel of one packing ring 27 directed toward the open side of the U-shaped channel of the other packingring 27'. It is pointed out that the outer annular edge of each packing ring 27 and v 27' is bevelled at 27a in order to permit the body of leather to properly position and seat itself within the groove 22 or 23 without wrinkling.

The valve is shown in on position in Fig. 1, wherein the right hand side pressure compartment bore 28 of the valve body 10 is the pressure line side, while the left hand exhaust compartment bore 29 of the valve body 10 is the exhaust line side. When the valve is connected in a pressure line, fluid under pressure enters the cylindrical bore 28 through the adapter connection 11, thence flows through the by-pass ports 13, along the chamber formed by the internal annular groove 24 of the valve sleeve 21, through the by-pass ports 13 and into the tubular bore 29, and thence out through the adapter member 18.

The full line pressure being present in the chamber formed by the groove 24 acts through the communications 25 and 26 upon the U- shaped leather packing rings 27 and 27 regardless of the position of the sleeve 21 to force the inner circumferential surface of the packing rings tightly in sealing relation against the outer peripheral surface of the valve body 10. Thus, as the pressure in the line increases, the effectiveness of the seals 2'7 and 27' also increases, so as to positively prevent any leakage at the valve.

The action of the line pressure on the U- shaped packing rings alsofunctions to hold the valve sleeve at the position in which it is placed, because of the pressure of the inner surfaces of the U-shaped packing rings against the valve may 10. Accordingly. the valve is unaffected y vibration and jarring, or by any accidental blow from some external force not intended for changing the position of the valve sleeve.

The annular face 20 of the connection adapter member 18 provides a stop or abutment for the left hand end face 30-of the valve sleeve 21 when it is desired to position the valve sleeve in on position as shown in Fig. 1, so that the fluid in the pressure line in which the valve is interposed may be by-passed through the ports 13 and 13' and along the passage formed by the groove 24.

It is only necessary to slide or rotate a valve sleeve 21 longitudinally of the valve body 10 so that the other end face 31 of the valve sleeve 21 abuts against the end face 19 of the member 11 in order to position the valve in off position, as shown in Fig. 2, so that communication between the ports 13 and 13 is cut off.

As shown in Figs. 1 and 2, the outer peripheral edges of the ports 13 and 13 are formed or burnished to be rounded or curved at 13a in order to remove sharp edges. which would cut into and destroy the leather packing rings 2'7 as the sleeve 21 slides to and fro along the valve body, when shifting the valve from on to off position or vice versa, when the packing ring 27' is under full line pressure.

When the valve. is in off position as shown in Fig. 2, the exhaust side by-pass ports or openings 13 are uncovered by the sleeve and open to the atmosphere, so that the exhaust side bypass openings 13 provide means for permitting fluid medium in the exhaust side of the line to escape to the atmosphere through the ports 13' termed herein as bleeding the exhaust side of the valve.

When the valve is moved to off position, the packing ring 27 slides along the valve body, across the ports 13', and is positioned around the periphery of. the valve body adjacent the partition wall 12 and between the ports 13and l3. Communication between the ports 13 and 13 is thus cut off, while full line pressure is exerted against the packing rings 27 and 27' through the ports 13 to seat the packing rings and prevent leakage of the valve when the same is in off position.

I claim: 7

1. A valve including a tubular valve body having a transverse partition wall forming pressure and exhaust side compartments therein, there be-' ing ports in the tubular wall leading from each compartment, a sleeve mounted for movement on the valve body, there being an internal groove in said sleeve always communicating with said pressure side ports and establishing communication between all of said ports when the sleeve is in on position, two flexible channel-shaped packing rings carried by the sleeve interposed between the valve body and sleeve, the open-sides of the channel-shaped rings being directed toward each other and always communicating through said sleeve groove with the pressure side ports, one of'said packing rings moving across said exhaust side, ports when the sleeve is moved to an off position, the outer edges of said ports being provided with rounded corners whereby said corners do not cut or destroy said packing ring movable thereacross, and said exhaust side ports being uncovered when the sleeve. is in an off position providing "means for bleeding the exhaust side of the valve.

2. A valve including a tubular valve body having a transverse partition wall forming pressure and exhaust side compartments therein, there being ports in the tubular wall leading from each compartment, a sleeve mounted for movement on the valve body, there being an internal groove in said sleeve always communicating with said pressure side ports and establishing communication between all of said ports when the sleeve is in on position, two flexible channel-shaped packing rings carried by the sleeve interposed between the valve body and sleeve, the open sides of the channel-shaped rings being directed toward each other and always communicating through said sleeve groove with the pressure side ports, and said exhaust side ports being uncovered when the sleeve is in an ofi" position providing means for bleeding the exhaust side of the valve.

3. A valve including a tubular valve body having a transverse partition wall forming pressure and exhaust side compartments therein, there being ports in the tubular wall leading from each compartment, a sleeve mounted for movement on the valve body, there being an internal groove in said sleeve always communicating with said pressure side ports and establishing communication between all of said ports when the sleeve is in on position, two flexible channelshaped packing rings carried by the sleeve interposed between the valve body and sleeve, the open sides of the channel-shaped rings being directed toward each other and always communicating through said sleeve groove with the pressure side ports, one 01' said packing rings moving across said exhaust side ports when the sleeve is moved to an "of!" position, and the outer edges of said ports being provided with rounded corners whereby said corners do not cut or destroy said packing ring movable thereacross.

4. A valve including a tubular valve body having a transverse partition wall forming pressure and exhaust side compartments therein, there being ports in the tubular wall leading from each compartment, a sleeve mounted for movement on the valve body, there being an internal groove in said sleeve always communicating with said pressure side ports and establishing communication between all of said ports when the sleeve is in on position, two packing rings carried by the sleeve interposed between the valve body and sleeve, one of said packing rings moving across said exhaust side ports when the sleeve is moved to an off" position, the outer edges of said ports being provided with rounded corners whereby said corners do not out or destroy said packing ring movable thereacross, and said exhaust side ports being uncovered when the sleeve is in an off position providing means for bleeding the exhaust side of the valve.

NATHAN C. HUNT. 

